Active areas
Sunspots and active regions
By the end of the day, the following active regions with sunspots could be observed on the Sun's surface
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 9457 | S19 | E04 | 02 | 0000 | Alpha | May 15, 2001 | May 22, 2001 | Jun 5, 2001 |
| № 9456 | N06 | W17 | 11 | 0050 | Beta | May 14, 2001 | May 20, 2001 | Jun 3, 2001 |
| № 9455 | S18 | W10 | 21 | 0160 | Beta-Gamma | May 14, 2001 | May 21, 2001 | Jun 4, 2001 |
| № 9454 | N12 | E33 | 18 | 0400 | Beta-Gamma | May 17, 2001 | May 24, 2001 | Jun 7, 2001 |
| № 9451 | S22 | W38 | 06 | 0120 | Beta | May 12, 2001 | May 19, 2001 | Jun 2, 2001 |
| № 9448 | N23 | W83 | 01 | 0110 | Alpha | May 9, 2001 | May 15, 2001 | May 29, 2001 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1972, January to 2001, May. Gray background - average solar cycle.
